Spirit-level.



110.883,659. A ATENTBD MAR. a1, 1908.

TLJ. MAHGNEY. SPIRIT LEVEL.

APPLICATION FILED JULY 11,1907.

@non l'oz 7207MB L27-agave attciumup UNITED ySTATES PATENT oFFioE. y

THOMAS JiMAHONEY, )F` HOT "SPRINGS, ARKANSASQSSIGNOR OF-ONE-THIRD TO THOMAS BERGMAN, OF HOT SPRINGS, ARKANSAS. I

SPIRIT-LEVEL. 'Y

',To all 'whom it ma/y concern.' c

`Be it known that 1,*.THOMAS J. MAHONEY, 'a v citizen of theUnitedStates, residing at Hot l prings, in the county' of Garland,v State of Arkansas, have.; invented certain new and ,useulnhnprov'ments in Spirit-Levels; and 5I do hereby declare the followin to.`be a full, clear, and exact descriptionl` te invention,` u such as Will enable others skilled inthe art to which it appertainfs to make and use the same.

improvements inspiritlevels, and it has parv .tivcularfreference to a spirit level of that 'tfpe h'inl'icles'an annular spirit tube an m djuncts are employed.'

ide means for mountin .thetube in the dg Stock,.si1ch means inc uding `as an lelementthe gage abovefreferred VThe invention aims asfafiirthenobject to and'arrangement of parts t E5 will appearin the coun4 `scr'iption Iinl which refe:

e'details of which ollowing `del esignating 'similarJ eralf v1`ews wherein 3 Figure 1 vis a `top structed in accor tionallvie'w thereof. A l g. l

' level, which". at a central oint lis formed 'wi'h anv annular recess 16, avin its base* 'curved concavely as at 7;* toiaifor a seating ecess 6,. the stock is formed vwitha e al interjsteps' 11 .and 12. Similar steps A11 and `12 areiformed to surround the outer edge of ,the recess, 6. An annular. glass late 1 3 .is j imposed upon the steps ,l2/ andj 2 t'o hold the tube 8 against displacementand at the f tg-R 11 Thejrings. 14 and 15 partially Speciication'of- Lettersl Patent. Application led. July 11, '1907. .Serial No. 888,205.

invention aixnsnasa primary object to invention. but.; l shown and describedf are lwell adapttdffto. e. )serve-*th functions-set "forth, it isobviousf d c .is'hadtoftleggcff com anyin rawin vform' Taf artfo t is.v s4 ecpilicatiorgi, ,like l'sharactiaggl o `refererfice parts-fthroughout'the sevp 'videv a novel construction; combinationI inf the proportions, `sha rof the several parts wit out "departing from plarimviewlof a level conance with the present invention,I Fig. 2 is a central longitudinal sec a centralrajsed portion having its edge C The numeral 5 kdesignates the stock `of the y lower steps, an annularspirit tube the .spirit tube 8. Withinthe contines `of en raisedportion 10,` the outer wall ofA is" formed with concentric upper and.

-in presence of two Witnesses.

Patented Maren 31u-190s.

overlie the plate 13 and have their mutall adjacent edges spaced. Said rings are ilus with the surface of thestock 5 and are* held by fastening screws 16. It isy preferred to calibrate the .ring 15 as at 17 whereb the same mayserve as a gage to clearly in 'cate all cardinal points and fractions4 The in`' 60 .vention is thus adapted for useas a level,

a plumb, or an inclinotmite1-'. Therrin 14 .and 15 may be readily removed an the tube 8 inserted orl diplaced should any.- 'f'lhis'in'ventiony relates Ito'ne'sv and useful,

occasion for its remov arise.A The/'lili' 65A f 14 and 15 aside from their function. ofhol ing the plate 13 against displacement,4 servef p as a dust-guard and as #protect-ion against-4 tionfwith whichan' annular gage'and` J blows.

details, inexpensive] lto' lf'mllfllfacturap and' practical and eillcient in'iusegf From' the foregoing descriptionit willl be ,seenthat simple. and eicientl'me'ans areprvided for accomplishing thefobjectsof the 75 WhileA the elements filieriliv that various minor. changes maybeniade:

, 'andfarrangeniet 80 the .spi-rit andl scopeof the invention' as de;` V

What-'is claimed, is, i ,i

` -A device of the typesetforth', comprising i85 a' stock formedy with an annular recess deA portion formed with u per` and lower ste s,-` the face of the stock adiacent theouter erfgeof the recess being formed withl up er and isposed ,Within the ret-ess, an' annular transparent plate liinpo'sedaupon'the lower stepand 2 ridg' gl the recess,j and zspaced concentric metallic rings .imposedv upon correspon" i a6 upper steps 18nd securedftothe ,stop,; saiv rings partialiyoverlying and confini .ith transparent plate, one of said` rings In testimony whereof, I' affix signature, .1mi

THOMAS; J. iilioNEY.

Y Witnesses: WM. EGBERT,

W. M. DonsoN. 

